baber/WOPTO huggingface dataset:
Patent GB-1490048-A (GB)
Title: N-substituted phenyl-piperidine derivatives
IPC: C07D211/22
Filed: 1976-05-17
Abstract: 1490048 Derivatives of 3-(3,4-dihydroxyphenyl)piperidine ROUSSEL UCLAF 17 May 1976 [16 May 1975] 20309/76 Heading C2C The invention comprises compounds of formula wherein either (a) X is H or C 2-6  acyl and R is (up to C 5 ) alkyl or alkenyl, or Ph-C 1-3 -alkyl (and acid addition salts thereof), or (b) X is Me and R is EtCO, Et, Pr, Me 2 CH, allyl or Ph(CH 2 ) 2 . Also described are analogues of (b) where R is Me or Ac. In examples, these compounds are prepared by (i) O-acylation; (ii) N-substitution; (iii) converting a dimethyl ether to a diphenol with HBr; (iv) reducing R=Ac or EtCO, to Me and Et, respectively; (v) reducing a corresponding tetrahydropyridine; (vi) reacting the compound where X=Me and R = H with CH 2 O giving an intermediate (in which presumably R = CH 2 OH) which is then reduced with sodium cyanoborohydride. Therapeutic compositions having dopaminelike and in some cases also hypotensive activity, comprise the above compounds (Ia), and may be administered orally, parenterally or rectally.
Patent GB-1471835-A (GB)
Title: Process for removing hydrocarbons from gaseous mixtures
IPC: B01J23/889
Filed: 1975-05-14
Abstract: 1471835 Exhaust gas purification catalysts HOECHST AG 14 May 1975 [14 June 1974] 20363/75 Heading B1E [Also in Division Cl] A catalyst for use in a process for removing hydrocarbons from combustion engine exhaust gases (see Division Cl) comprises an inert carrier having oxides of Cu, Mn and Ni applied thereto. The carrier, which may consist of alumina, spinel or cordierite and a honeycomb or pellets of diamonds of 2-5 mm has the individual oxides applied thereto in a ratio by weight within the range 0.1-1.0. The Cu:Mn:Ni oxide ratio is preferably 1:1:1. The catalyst may be made by heating the carrier to 300-400‹C, dipping it for 20-40 minutes in a hot aqueous solution of Cu, Mn and Ni nitrates, shaking off superficial liquid, drying the impregnated carrier for 1-2 hours at 105-130‹C, decomposing the nitrates to oxides by heating to 350-450‹C, calcining at 700-900‹C for 5-15 hours and then activating for 1-3 hours at 300-500‹C with a mixture of H 3  and N 2 . Alternatively the carrier may be first dipped for 20-40 minutes in an aluminium salt solution, e.g. aluminium nitrate or aluminium hydroxy chloride, or a suspension of finely divided Al 2 O 3  and then impregnating it with the Cu, Mn and Ni nitrate solution. When the aluminium salt is employed the dried impregnated carrier is calcined for 3-10 hours at 500-800‹C. When the alumina suspension is employed the dried impregnated carrier is heated to within the range of 350- 500‹C and maintained thereat for 3-10 hours.
Patent GB-1390813-A (GB)
Title: Apparatus for assisting blood circulation
IPC: A61M60/878
Filed: 1972-05-02
Abstract: 1390813 Blood circulation assisting apparatus AVCO CORP 2 May 1972 [14 May 1971] 20373/72 Heading A5R [Also in Divisions F2 and H2] Blood circulation assisting apparatus comprises a pump 24, 25 cyclically inflating a balloon 15, which is connected to a catheter 16 and located in the descending aorta of the patient, electronic timing means 51 for synchronising the balloon inflation with the patient's heart rhythm, preferably so that the balloon is inflated during the cardiac diastole periods, means for providing a first output signal dependent upon the maximum safe inflated volume of the balloon, means for - providing a second output signal proportional to the displacement per cycle of the pump, a comparator for receiving said signals and generating a third signal when the displacement of the pump would inflate the balloon above its safe limit, and a vent valve 59 actuated by said third signal to deflate the balloon. Each R-wave of the ECG is detected by circuit 50 which starts a clock in the timing means 51, the timing means producing output signals to cause an electromagnetic valve 52 to connect a chamber 24a in the pump either to a pressure source 54 or an exhaust 55. An isolating piston 24 transmits the pressure in chamber 24a to a chamber 24b containing helium which is used to inflate the balloon, helium lost by permeation through the balloon being replaced from a supply 58. The. catheter 16 is releasably connected to the pump by a two-part connector 18 connecting the catheter 16 to a tube leading to the pump and having a first part secured to the catheter and including a resistor connected via wires leading from the second part of the connector to said comparator and used to produce said first signal. The pump displacement is adjustable by a manual control knob and is displayed on a meter on a console containing all the parts of the apparatus except the catheter 16 balloon 15 connector 18 and connections thereto. Said control knob also adjusts a variable impedance device, such as a potentiometer, which is used to provide said second signal.
Patent GB-297916-A (GB)
Title: Improvements in artificial leather and its manufacture
IPC: D06N3/16
Filed: 1927-08-02
Abstract: 297,916. Miller, J. S. Aug. 2, 1927. Single coatings; multiple superposed coatings; treatment prior to coating.-Artificial leather is made by impregnating and coating a textile base with bitumen, embossing one of the coated faces with a grain, and varnishing it with a flexible pyroxylin varnish. The fabric 5, which may be stout muslin, is drawn from a roll 11 under a roller 13 immersed in a heated bitumen bath 14. The fabric is then drawn between two rollers 15, molten bitumen being supplied in front of the upper roller by a pipe 16. The lower roller dips into a bitumen bath 17. The bitumen coated fabric then passes between rollers 20, 20, one or both of which is patterned so as to emboss the fabric with a grain imitating leather, with or without an additional ornamental design. The pyroxylin varnish is then applied by a spraying device 21 located over a drip pan 22.
Patent GB-1109597-A (GB)
Title: Semi-conductor assemblies
Inventor: MILES CLIFFORD VICTOR
IPC: H01L23/42
Filed: 1966-05-09
Abstract: 1,109,597. Semi-conductor devices. WESTINGHOUSE BRAKE & SIGNAL CO. Ltd., and ENGLISH ELECTRIC CO. Ltd. 7 March, 1967 [9 May, 1966], No. 20393/66. Heading H1K. A plurality of PN junction-containing elements contained in a housing filled with a vaporizable coolant liquid, e.g. " Freon " (Registered Trade Mark) are spaced apart but series-connected by conducting spacers which are formed with holes to enable the liquid to circulate around the junction elements. In the arrangement shown the elements 1 are silicon diodes and are clamped between the finned casing 8 serving as one terminal and an insulated screw 13 serving as the other. If thyristors are used in such an arrangement the gate leads extend out through the holes in insulating sleeves and pass through insulating bushes.
Patent GB-830728-A (GB)
Title: Hydraulically operated electric switch devices
IPC: H01H3/24
Filed: 1958-06-25
Abstract: 830,728. Hydraulic actuation of switches. JACOBSENS ELEKTRISKE VERKSTED A.S., N. June 25, 1958 [June 25, 1957], No. 20439/58. Class 38 (5). An hydraulically - operated switch suitable for traffic registration comprises a bottleshaped housing 5 whose neck contains a cylinder 9 and a movable piston 8 having a tiltably-attached disc 7 for bridging contacts 6. The housing 5 is connected by a tube 4 to a steel container acted on by pressure (Fig. 1, not shown), the whole system being filled with an insulating liquid 11, and a gas bubble 12 absorbing the volume variations of the tube system. A clearance between the piston 8 and cylinder 9 forms a by-pass to equalize the pressure between members 4 and 5, after a pressure wave has lifted the piston, the turbulence of such a wave being fully utilized by the axiallyvarying cross-section of the piston 8. Alternative forms of by-pass may be provided and the whole pressure system may be either open or closed to the atmosphere.
Patent GB-650675-A (GB)
Title: Flexible coated magnetic record member and method of making same
IPC: G11B5/70
Filed: 1946-07-09
Abstract: Cellulose derivative compositions for coating paper to produce magnetic recording material comprise magnetizable particles such as magnetite powder mixed with (a) cellulose acetate, triphenyl phosphate, and methyl ethyl ketone; or (b) nitrocellulose of low viscosity, diethylene glycol monobutyl ether, dibutyl phthalate, and blown castor oil.  Vinyl resin compositions for the same purpose comprise similar magnetizable particles, polyvinyl acetate or a copolymer of acrylic and methacrylic esters dissolved in toluene or ethyl alcohol.  Optional additions are glycerine, tannin, and the acetate of ethylene glycol monoethyl ether.ALSO:Magnetite powder for use in magnetic recording tapes is made by heating to 125 DEG  F. in an autoclave a 15 DEG  B<\>ae. aqueous solution of ferrous sulphate, adding aqueous sodium hydroxide while stirring, heating to 250 DEG F. while the pressure is allowed to rise to 60 lbs. per sq. inch above atmospheric, and bubbling air through the contents of the autoclave for 2 hours.  The oxide is separated by filtering, dried, and pulverized.
Patent GB-1431801-A (GB)
Title: Method of producing an article or continuous strip  from metallic powder
IPC: B22F3/18
Filed: 1973-05-01
Abstract: 1431801 Production of hot pressed metal articles ARMCO STEEL CORP 1 May 1973 20586/73 Heading C7D Metal or alloy articles such as strip are produced by feeding a binder free metal powder between opposed electrode rolls and simultaneously applying pressure and an electric current to the rolls to form a sintered strip with a density approaching theoretical. The rolls are preferably segmented with each pair of opposing segments being separately supplied with electrical power so that the power to each pair can be regulated and a uniform temperature achieved across the strip. The powder may be precompacted by electrode rolls and the voltage applied to the precompacting rolls is greater than that applied to the final compacting rolls. The powder may be fed between horizontal rolls 12, 12a as shown in Fig. 1 and dry H 2 , dew point -40‹C may be introduced into the roll nip from nozzles 16, 16a. The rolled strip may be cooled at station 18, cold rolled at 20 and heat-treated at 22. Alternatively the powder from a mould 34 may be fed into the opening of a continuous U-shaped mould 32 and rolled between vertical electrode rolls 30, 30a as in Fig. 2. In an alternative embodiment uniformity of density across the strip is achieved by altering the depth of powder feed on a conveyer belt fed to the rolls or by using rolls with a concave rolling surface. Examples are given of rolling low carbon 18Cr- 12Ni-2À5Mo stainless steel and Ti-6Al-4V alloy powders.
Patent GB-1209738-A (GB)
Title: Pushbutton-operated overload circuit breaker
IPC: H02H3/087
Filed: 1969-04-22
Abstract: 1,209,738. Protective arrangements. ELLENBERGER & POENSGEN G.m.b.H. 22 April, 1969 [27 April, 1968; 8 Nov., 1968], No. 20619/69. Heading H2K. A protective arrangement comprises an overload-responsive putton-button operated circuitbreaker 7 with its release device 9 in series with the circuit-breaker contacts 6, a normallyconducting power transistor 10 with its emitter/ collector circuit in parallel with the release device 9 and control means for rendering the transistor non-conducting when the current in the protected circuit exceeds a predetermined amount. The control means may comprise a diode 13 which conducts when the voltage drop across a control resistor 8 due to the circuit current reaches a predetermined level. The diode 13 may be a Zener diode or be replaced by a control transistor, Figs. 2 and 3 (not shown), or by two control transistors, Fig. 4 (not shown). The device 9 may be an electromagnetic release and the resistor 8 a heating winding for a bimetallic release device. Alternatively the device 9 may be a heating winding for a bimetallic release constituting the resistor 8. Reference is made to other combinations of releasing devices.
Patent GB-238571-A (GB)
Title: A process and apparatus for improving the tone of stringed instruments
IPC: G10D1/00
Filed: 1925-08-17
Abstract: 238,571. Wikarski, F., (Assignee of Adam, M.). Aug. 16, 1924, [Convention date]. Work-holders.-The back or belly 7 of a violin &c. is mounted during manufacture over an aperture 6 in a box 1 containing lamps 2 so that it is intensively and uniformly illuminated from the rear, thus rendering clearly visible irregularities requiring to be removed and facilitating accurate working to the varying thickness. Preferably the lamps are frosted or a frosted plate is interposed. Preferably also a cooling vessel 4, either containing a weak solution of copper sulphate or traversed by tapwater, is interposed.
Patent GB-238880-A (GB)
Title: Improvements in or relating to the manufacture of chocolate
IPC: A23G1/10
Filed: 1925-08-17
Abstract: 238,880. B³hler Geb. Aug. 22, 1924, [Convention date]. Cocoa preparations.-Chocolate is prepared in a single machine through which a stream of hot fresh air is continuously passed, the machine comprising an enclosed rolling mill, in which the rolling, stoving, and conching is effected, having a trough for mixing and kneading the material. In one form the apparatus, Figs. 1 and 3, is enclosed in a chamber 20 and comprises a mixing trough 14 provided with a jacket containing steam heating coils 32 and having mixing blades 13 rotated through gear wheels 10, 11 from a beltdriven pulley 8. The outlet aperture 16 of the trough 14 is adjustably closed by a gate 15 operated through a rack and pinion 19, 17 from a hard-wheel 18. The chocolate dough passes from trough 14 through feed rollers 6, 7 to the rollers 2 .. 5 of the rolling mill 1 which run at different circumferential speeds and may be adjusted by hand-wheels 29. The rollers 2 .. 7 are driven through gearing 9 from the pulley 8. Lateral guides 35 on the rollers keep the dough from being squirted off. The dough is removed from roller 5 by a scraper 34, and passes to a basin 24 resting on a grate 25 which is pivotally carried by levers 28 above the inlet aperture 26 of trough 14, so that it can be swung aside. Fresh air heated by a steam coil 31 is fed by a fan 30 through a conduit 21 into the chamber 20 has a door 23. In a modification, the rolling mill 1 is provided with two mixing troughs and two series of feed rolls to provide for continuous working. A temperature of approximately 70-80‹ C. may be maintained within the chamber. Dry ground cocoa and ground sugar are added to the mixer, or unground sugar may be employed, the charge after mixing being given a preliminary rubbing and grinding by passing through the rolling mill followed by the final fine rubbing and grinding. The sugar and the ground cocoa may be mixed &c. in one trough of a two-trough machine and the dough passed through the rolling mill to the second trough from which after mixing &c. it is again passed through the mill. The Specification as open to inspection under Sect. 91 (3) (a) comprises also a process in which ground chocolate dough prepared by the known process is mixed, kneaded, and rolled in the above apparatus to obtain the required consistency and quality. This subject-matter does not appear in the Specification as accepted.
Patent GB-896010-A (GB)
Title: Planographic printing plates
IPC: B41N3/03
Filed: 1960-06-13
Abstract: 896,010. Printing surfaces. WARREN CO., S. D. June 13,1960 [Sept. 21,1959], No. 20658/60. Class 100(2) A planographic printing plate comprises a paper base and a coating thereon having a planographic printing surface, the coating comprising an insoluble hydrophilic adhesive and a finely divided inert mineral pigment, and having therein capillary interstices and pores containing a water-soluble mixture of a divalent metal salt and a multivalent metal salt, these salts being present in substantial excess of the quantity capable of reacting with the adhesive, and the weight ratio of the divalent metal salt to the multivalent metal salt lying between 1 to 9 and 9 to 1. The divalent metal salt consists of zinc acetate or zinc formate, and the multivalent malarl salt consists of aluminium acetate, chloride, formate, or sulphate, or cerium chloride, ferric formate, or zirconium acetate. The coating includes insolubilized casein or carboxymethyl cellulose adhesive. In one example, the paper base is made from wood fibres mixed with rosin size, melamine-formaldehyde resin and alum, and is washed with casein formaldehyde, dried and calendered. It is then coated on the non-printing side with clay, casein, and dimethylol urea to prevent curling, and the printing side is coated with a pigment of clay and titanium dioxide, sodium methyl cellulose, melamineformaldehyde resin, a wetting agent, tributyl phosphate, water, and phosphoric acid. The latter coating, after drying, is then coated with an aqueous solution containing zinc formate, aluminium formate, butanol, a wetting agent, and water. The simple metal salts may be replaced by double salts. The quantity of the soluble metal salts left in the surface pores of the printing plate is in substantial excess of that used . up by reaction with the adhesive, the excess being free to react with an ingredient of the aqueous lithographic solutions which are normally applied to the plate in use. Specifications 633,746, 633,747, 692,387 and 766,235 are referred to.
Patent GB-436679-A (GB)
Title: Improvements relating to ladders
IPC: E06C7/48
Filed: 1934-07-14
Abstract: 436,679. Ladder brackets. GOUDGE, A. W., 23, Southbridge Place, Croydon. July 14, 1934, No. 20677. [Class 20 (ii)] A device for supporting the upper end of a ladder away from a wall comprises arms 1 pivotally supported on clamps 4 which are clamped to the upper ends of the ladder stiles, hooked stops 8 being provided on the clamps to retain the arms in supporting position. Integral with or attached to the arms is a band 11 which is adapted to encircle the body of a person using the ladder so that both hands are free for use. The arms may be adjustably pivoted to studs projecting from the ladder sides, or may be adapted to slide in slideways pivoted on the ladder sides and extension pieces may also be provided for the arms.
Patent GB-242235-A (GB)
Title: Improvements in or relating to driving belts
IPC: B61D43/00
Filed: 1925-08-18
Abstract: 242,235. Roderwald, R., (Assignee of National-Dynamo-Zugbeleuchtung Ges.). Nov. 3, 1924, [Convention date]. Belts. - Wedgesection driving-belts for use in train lighting systems &c. are produced by vulcanizing rubber or rubber and woven fabric friction segment's b, which may be circular in cross-section transverse to the belt length, to a woven belt a impregnated with rubber, upon which they are threaded.
Patent GB-1469743-A (GB)
Title: Insecticidal phenylhydrazone derivatives
IPC: A01N41/12
Filed: 1975-05-15
Abstract: 1469743 Halogenated phenylhydrazone sulphides; their preparation and insecticidal compositions CHEVRON RESEARCH CO 15 May 1975 [16 May 1974 (2)] 20742/75 Heading C2C [Also in Division A5] The invention comprises compounds of Formula I wherein R<SP>1</SP> is hydrogen or C 1-6  alkyl; R<SP>2</SP> is hydrogen or C 1-6  alkyl; R<SP>3</SP> is C 1-6  alkyl, C 1-6  haloalkyl having from 1 to 5 fluorine, chlorine or bromine atoms or a phenyl group optionally substituted by up to 3 fluorine, chlorine or bromine atoms; Ar is phenyl optionally substituted by up to 5 fluorine, chlorine or bromine atoms or one or two nitro groups and n is 1, 2 or 3 which may be prepared by reacting a compound of Formula IV or VIII with PCl 5  or by reacting a compound of Formula VI with a mercaptan of formula R<SP>3</SP>SH. The bis-2,4,6-trichlorophenylhydrazone of 2,2<SP>1</SP>-dithiobis-isobutyraldehyde is prepared by reacting 2,4,6-trichlorophenyl hydrazine with 2,2<SP>1</SP>-dithiobisisobutyraldehyde in ethanol. 2,4,6-Trichlorophenyl 2-bromo-prop-2-ylhydrazide is prepared by reaction of 2-bromo-2-methylpropionyl bromide with 2,4,6-trichlorophenylhydrazine and is reacted with sodium methylmercaptide to obtain 2,4,6-trichlorophenyl 2-methylthioprop-2-ylhydrazide. 2-Methyldithio-2-methylpropionyl chloride is prepared by reaction of 2-methyldithio-2-methylpropionic acid with thionyl chloride and is reacted with 2,4,6-trichlorophenylhydrazine to obtain 2,4,6-trichlorophenyl-2-methyldithioprop-2-ylhydrazide. 2,2<SP>1</SP>-Dithiobisisobutyryl chloride is prepared by reaction of the parent acid with thionyl chloride and is reacted with phenyl hydrazine to obtain 2,2<SP>1</SP>-dithiobisisobutyric acid bisphenylhydrazide. Insecticidal compositions comprise a phenylhydrazone derivative of Formula I together with a biologically inert carrier therefor.
Patent GB-1122209-A (GB)
Title: Print hammer mechanism
Inventor: KHUYSEN THEODOOR CORNELIS BIN
IPC: B41J9/42
Filed: 1966-05-11
Abstract: 1,122,209. Selective printing. INTERNATIONAL BUSINESS MACHINES CORP. 11 May, 1966 [12 May, 1965], No. 20783/66. Heading B6F. Type - wheel machines; multiple type surface selection; hammer impression arrangements aligning for impression. A calculating machine having a number of type-wheels 20 which are set for selective printing by a slide 23 which is arrested by the shank of a depressed amount key 25, following actuation of a motorized key (not shown), is provided with a hammer mechanism which includes a pivotally mounted hammer 3 impelled for impression by the arm 11 of a lever 2, whose arm 18 and arm 11 subsequently engage respective hammer surfaces 19 and 13 to arrest the hammer after impression and prevent rebound. To effect impression a lever 26 is rotated anti-clockwise by a driven lever 37 (Fig. 5) whereupon a segment 4 is rocked clockwise under the action of spring 5 attached to arm 2A of lever 2 until it engages one of abutments or recess 27 which adjust the force of the spring 5 in accordance with the surface area of the printed character, a pin 29 on the lever 26 is moved concomitantly with the lever in the anticlockwise direction to permit a lever 28 biased by spring 30 to pivot anti-clockwise and align the set type-wheels 20 by engaging a type face aligner 31 with the spaces between types 8. Moreover, pivoting of the lever 26 causes its lug 26A to engage an arm 32A of bell-crank 32 and pivot the latter anti-clockwise whereby a lug 33 engages a slide 35 to raise it upwardly and release arm 11 of lever 2, which is now pivoted by the spring 5 to impel the hammer against the type 8, the pin 36 having been previously pivoted upwardly. Hammer is reset by arm 18 when pin 36 which is mounted on a lever 44 (Fig. 4), is pivoted downwardly by action of lever 37 on the lever 44.
Patent GB-219515-A (GB)
Title: Device for preventing blurring of motor car windscreens
IPC: B60S1/54
Filed: 1923-08-16
Abstract: 219,515. Thomas, J. Aug. 16, 1923. Windows, preventing condensation on.-The wind screen of a motorcar is kept clear by a current of warmed air which is maintained by the pump c. The air pipe g is coiled round the exhaust and delivers the warmed air through one or more fixed or movable jets j. The pump is frictionally driven from the fly-wheel or clutch d and means, such as a Bowden control k and rat-trap spring n, are provided to put the pump into or out of operation.
Patent GB-365015-A (GB)
IPC: C10B25/16
Filed: 1930-12-05
Abstract: 365,015. Coke oven doors. ACKEREN, P. VAN, 62, Irmgardstrasse, Essen, Germany.-(Assignee of Koppers Akt.-Ges., H. ; 29, Moltkestrasse, Essen, Germany.) Dec. 5, 1930, No. 20855/31. Convention date, Dec. 9, 1929. Divided on 368,384. [Class 123 (i).] A coke oven closure means comprises a doorway surround 15 detachably secured to the oven front 12, and a door plug 30 projecting into the oven and provided with gastight packing, which may be a lute packing or selfsealing. The door frame 14 has arms 19 engaging hook-shaped members 31 carried on the doorway surround which is secured by bolts 20 having heads which engage in slots 27. Spring washers 28 and packing 21 render the joint between the surround 15 and the oven resilient and gastight. A shaped surface 34 on the door forms with another surface 35 on the surround 15 a space 16 to accommodate a lute packing, and a self-sealing packing is supported by a packing frame 17 which carries a resilient plate 18 with a packing strip 37.